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Hallo I am PIC programmer. I have always used CCS C compiler. I want to pass to the 32 bit platform and I thought that ARM would be best. I thought of buying a development board from Olimex and use the Keil uVision compiler. Before spending a few money I need to clarify a couple of things. Do I need anything else to get started? Is the Olimex board and Keil compiler enough to write firmware, compile, burn the chip, and expect it to work? What is the jtag? In CCS C compiler there are many libraries for the microcontroller’s peripherals, is it the same in ARM development?
Olimex does not make their own JTAG interface to my knowledge.
I haven't tested the Olimex board with Keil and ULINK2. I got the Olimex board with the IAR eval kit.
" I got the Olimex board with the IAR eval kit."
I looked at the Olimex site, and they do seem to be exclusively IAR (no mention of Keil).
That most likely means you'll get limited (if any) support from Olimex when you have Keil-specific questions. Similarly, it's also likely to mean that there are (relatively) few Keil users familiar with the Olimex board.
As you say you're new to both ARM and Keil, it might make your life easier to either go with IAR and Olimex, or pick a board supplier with some knowledge of Keil...